130 lines
5.5 KiB
C++
130 lines
5.5 KiB
C++
/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef GrProcessorUnitTest_DEFINED
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#define GrProcessorUnitTest_DEFINED
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#include "SkRandom.h"
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#include "SkTArray.h"
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#include "SkTypes.h"
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class SkMatrix;
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class GrDrawTargetCaps;
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namespace GrProcessorUnitTest {
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// Used to access the dummy textures in TestCreate procs.
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enum {
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kSkiaPMTextureIdx = 0,
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kAlphaTextureIdx = 1,
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};
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/**
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* A helper for use in GrProcessor::TestCreate functions.
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*/
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const SkMatrix& TestMatrix(SkRandom*);
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}
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#if SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
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class GrContext;
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class GrProcessor;
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class GrTexture;
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template <class Processor>
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class GrProcessorTestFactory : SkNoncopyable {
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public:
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typedef Processor* (*CreateProc)(SkRandom*,
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GrContext*,
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const GrDrawTargetCaps& caps,
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GrTexture* dummyTextures[]);
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GrProcessorTestFactory(CreateProc createProc) {
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fCreateProc = createProc;
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GetFactories()->push_back(this);
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}
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static Processor* CreateStage(SkRandom* random,
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GrContext* context,
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const GrDrawTargetCaps& caps,
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GrTexture* dummyTextures[]) {
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VerifyFactoryCount();
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SkASSERT(GetFactories()->count());
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uint32_t idx = random->nextRangeU(0, GetFactories()->count() - 1);
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GrProcessorTestFactory<Processor>* factory = (*GetFactories())[idx];
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return factory->fCreateProc(random, context, caps, dummyTextures);
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}
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/*
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* A test function which verifies the count of factories.
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*/
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static void VerifyFactoryCount();
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private:
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CreateProc fCreateProc;
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static SkTArray<GrProcessorTestFactory<Processor>*, true>* GetFactories();
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};
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/** GrProcessor subclasses should insert this macro in their declaration to be included in the
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* program generation unit test.
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*/
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#define GR_DECLARE_GEOMETRY_PROCESSOR_TEST \
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static GrProcessorTestFactory<GrGeometryProcessor> gTestFactory SK_UNUSED; \
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static GrGeometryProcessor* TestCreate(SkRandom*, \
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GrContext*, \
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const GrDrawTargetCaps&, \
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GrTexture* dummyTextures[2])
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#define GR_DECLARE_FRAGMENT_PROCESSOR_TEST \
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static GrProcessorTestFactory<GrFragmentProcessor> gTestFactory SK_UNUSED; \
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static GrFragmentProcessor* TestCreate(SkRandom*, \
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GrContext*, \
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const GrDrawTargetCaps&, \
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GrTexture* dummyTextures[2])
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/** GrProcessor subclasses should insert this macro in their implementation file. They must then
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* also implement this static function:
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* GrProcessor* TestCreate(SkRandom*,
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* GrContext*,
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* const GrDrawTargetCaps&,
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* GrTexture* dummyTextures[2]);
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* dummyTextures[] are valid textures that can optionally be used to construct GrTextureAccesses.
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* The first texture has config kSkia8888_GrPixelConfig and the second has
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* kAlpha_8_GrPixelConfig. TestCreate functions are also free to create additional textures using
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* the GrContext.
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*/
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#define GR_DEFINE_FRAGMENT_PROCESSOR_TEST(Effect) \
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GrProcessorTestFactory<GrFragmentProcessor> Effect :: gTestFactory(Effect :: TestCreate)
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#define GR_DEFINE_GEOMETRY_PROCESSOR_TEST(Effect) \
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GrProcessorTestFactory<GrGeometryProcessor> Effect :: gTestFactory(Effect :: TestCreate)
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#else // !SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
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// The unit test relies on static initializers. Just declare the TestCreate function so that
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// its definitions will compile.
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#define GR_DECLARE_FRAGMENT_PROCESSOR_TEST \
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static GrFragmentProcessor* TestCreate(SkRandom*, \
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GrContext*, \
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const GrDrawTargetCaps&, \
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GrTexture* dummyTextures[2])
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#define GR_DEFINE_FRAGMENT_PROCESSOR_TEST(X)
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// The unit test relies on static initializers. Just declare the TestCreate function so that
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// its definitions will compile.
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#define GR_DECLARE_GEOMETRY_PROCESSOR_TEST \
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static GrGeometryProcessor* TestCreate(SkRandom*, \
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GrContext*, \
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const GrDrawTargetCaps&, \
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GrTexture* dummyTextures[2])
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#define GR_DEFINE_GEOMETRY_PROCESSOR_TEST(X)
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#endif // !SK_ALLOW_STATIC_GLOBAL_INITIALIZERS
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#endif
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